â€¢ The tested luminary rotates around the mirror with an angle of ( Î³) Â±180Â°( or 0- 360Â°) and the tested luminary rotates around itself with an angle of ( C) Â±180Â°( or 0- 360Â°) . â€¢ The accuracy of angle: 0.1Â° Resolution of angle: 0.01Â° â€...